This is a flawed tactic. Not the hacking part, but showing your target your methods. This is the very reason why the authorities are behind the power curve in this game. Let's take a very effective technique and just broadcast it out. Look at the informant wearing a wire, or phone tapping. Eventually that stuff gets out but it goes down real fast when you replay their own conversation to them obviously broadcasting your abilities...

"The quieter you become, the more you are able to hear...""Drink all the booze, hack all the things."